. >> four australian runners have clinched the guinness record for the fastest relay race in stilettos, ouch. they ran the 100 meter dash, and you can see right there, they're a good-sized heel, that's three inches. >> oh, man. and it took them just 1:04 to break the record. about 100 women and one man were in the competition. the winners say the key to victory is running on your toes. that way the high heels never touch the ground. >> that's why women are so in love with those platform heels right now. it's easier to run in those. >> i don't know how y'all walk in those things, let alone run. >> they do it much better than i do. >> go nurse those bunions. we'll be right back with more "world news now." let me tell you about a very important phone call i made. when i got my medicare card, i realized i needed an aarp... medicare supplement nsurance card, too. medicare is one of the great things about turning 65, but it doesn't cover everything. in fact, it only pays up to " 80% of your part b expenses. if you're already on or eligible for medicare, call now to find out how an aarp... in